Title:
USING TIME INDICATOR
Document Type and Number:
Japanese Patent JPS6192135
Kind Code:
A
Abstract:
PURPOSE:To readily detect the wear amount of a carbon brush by observing from the exterior through a window formed at a case of a device the state of a pointer mounted integrally with the carbon brush of a commutator motor. CONSTITUTION:A carbon brush 3 is contained in a carbon brush cap 4, and pressed by a spring 5 toward a commutator 2. A pointer 6 is integrally mounted with the brush 3 to move in the direction of an arrow as the brush 3 wears. The position of the pointer 6 is visible from the exterior through a window formed at a motor case (not shown). Thus, the detection of the wear of the brush 3 is facilitated to effectively exchange the brush. This is adapted for a device using a domestic commutator motor.
Inventors:
HASHIZUME KIYOSHI
OKANO KENJI
OKANO KENJI
Application Number:
JP21084284A
Publication Date:
May 10, 1986
Filing Date:
October 08, 1984
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
A47L9/28; A47L9/00; H01R39/58; H02K11/00; (IPC1-7): A47L9/28; H02K11/00
Attorney, Agent or Firm:
Toshio Nakao
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